Baffle strainer for water-circulating systems and the like



' Aug. 27, 1929. WIEAND I BAFFLE STRAiNER FOR WATER CIRCULATING SYSTEMSAND THE LIKE Filed June 26. 1928 I N V EN TOR. HENRY/7. W/E/V/VD,

Patented Aug. 27, 1929.

HENRY A. WIEAND, OF 'WYN COTE, PENNSYLVANIA.

BAFFLE STRAINER FOR WATER-CIRCULATING SYSTEMS AND THE LIKE.

Application filed June as, 1928. Serial No. 288,335."

My invention relates .to a new and useful strainer for strainingliquids, and more par-' ticularly to a strainer for straining confined,

circulating liquids such as the cooling water I in radiators'ofautomotive vehicles and the like, whereby such liquids are both strainedand I also utilize gravity for precipitating foreign matter such asdirt, sand, iron scale and other impurities having a greater specificgravity than said liquids. Y

My invention further relates to a novel strainer, wherein a dirt pocketfor the precipitated foreign matter or sediment is provided, so thatsuch sediment may be removed from time to time without dismantling theunit or in any way interfering wit-lithe circulation of the liquid beingused for cooling or other purposes.

I My invention still further relates to a novel construction of a liquidstrainer particularly adapted for use in connection with automotivevehicles whereby the water confined in the radiator and circulatingsystem isconstantly filtered and strained from all impurities and solidmatter in suspension in the water to prevent the clogging andobstructioriof the minute passages through which the water circulates insaid radiator. I

My invention still further relates to a novel strainer of a highlysimplified and eflicient construction and one which is extremely durableand very inexpensive to produce.

My invention still further relates to a novel strainer which may beapplied to or installed in the cooling system of any make of automoti revehicle or other machinery or any kind of water cooling and heatingsystems without in anyway interfering with the present construction andassembly of such machines and systems.

To the above ends my invention consists of a. two part casing adapted tobe connected to the circulating system, having its inner j uxtaposedfaces detachably secured, to each other in a water tight manner, ascreen positioned intermediate said juxtaposed faces, and a, bafile unitin the inlet section of-said casing and a dirt pocket formed below saidbaflle unit for receiving the solid matter precipitated by said bafileunit and said pocket being readily accessible and capable of beingdrained and cleansed without dismantling I said strainer or interferingwith the functioning thereof. I

My invention further consists of various other novel features ofconstruction and advantage, all as hereinafter described and claimed. i

For the purpose of illustrating my invention I have shown in theaccompanying drawings one form thereof which is at present preferred byme, sincethe same has been found in practiceto give satisfactory andreliable results, although it is to be understood that the variousinstrumentalities of which my invention consists can be variouslyarranged and organized and that my invention is not limited to theprecise arrangement and organization of the instrumentalities as hereinshown and described.

In the accompanying drawings.

Figure 1, represents a fragmentary View in side elevation showing aradiator and a portion of an automobile cooling systemland the manner ofapplying my novel strainer to said cooling system of an automobile, orthe like. i V

Figure 2, represents on an enlarged scale, a vertical sectional viewofmy novel strainer on line 2-2 Fig. 3.

Figure 3, represents a section on line 3-3, Figure? viewedin thedirection of the arrows, the pocket formed in the rear casing beingshown dotted.

' Figure 4, represents a view in side elevation of the novel baflle unitshown detached.

Referring to the drawings, in which like reference characters indicatelike parts, 1

designates my "novel strainer comprising the a front and rear funnelshaped casing sections 2 and 3, having the inlet and outlet'pipes 4 aand 5 and having the inner faces 6 and 7 thereof secured to each otherin a water tight manner by the bolts 8. vBetween the inner juxtaposedfaces 6 and 7 ofithe casing sections2and 3 is positioned the ring 9which carries the screen 10 of any desirable mesh or gauge, and the ring11 which carries the inclined baffles 13 and 14, which are connected toeach other and to said ring by the webs 15 and 16, the rings 9 and 11and their ad-. juncts being held in position by the bolts 8, as will beunderstood from Figure 2. J

The inlet pipe 4 .of the casing section 3 is connected to the pipe ormanifold 15 leading from the water jackets of the engine cylinders whilethe outlet pipe 5 of the casing section 2 is connected to the end of thepipe primary bafiile 14, which diverts the water and-thus causes some ofthe sediment suspended therein to be precipitated towards the dirtpocket 22. The water then flows under and around the secondary baflie 13in the direction of the arrow 20 seen in Fig. 2 where it is furtherdiverted by the inner orsecondary bafile 13 to cause the precipitationof the finer particles of sediment which were not initially precipitatedby the outer primary bafile 14. The water then flows over the secondarybafiie 13 in the direction of the arrow 21 through the screen 10 intothe exit casing section 2 and out through the exit pipe 5 into the pipe16 leading into the top of the radiator 17. The sediment precipitated bythe baffles 13 and 14 accumulates in the dirt pocket 22 formed in thebottom of the inlet casing'section 3, ust below the baffles 13 and 14,as will be understood from Fig. 2. The dirt pocket 22 is provided withthe bottom drain port- 23 normally closed by the plug 24 through whichthe accumulated sediment may be blown off or discharged.

It will be apparent from Figs. 2 and 3 that the primary baflle 14contacts for the greater portion of its periphery with the contiguousinner, conical surface of the inlet section 3, but at its lower portionthere is a well defined passage above the dirt pocket 22 to permit theflow of the fluid at alow velocity, thus causing eddies of other fluidwhich precipitates theforeign substances or solid matter. The fluidafter passing the lower periphery of the primary baflle 14 flowsupwardly between both baflies' still at a reduced velocity and thenceover'the top of the secondary bafie 13, at a slightly higher velocity,thus further precipitating all foreign substances still in suspension.Any remaining particles of solid matter in the fluid not removed by theaforesaid baflies are retained on the inlet or left hand side of thescreen 10. 1

By reason of the downward inclination of the primary and secondarybal'lles, it is obvious that the precipitation of the solid matterissomewhat accelerated, and in addition I am enabled to provide thenecessary areas within the casing sections to provide for theprecipitation, and in addition I am enabled to produce a very compactdevice having a minimum overall length whereby one standard structure iscapable of universal application. a

- It will be seen from the foregoing that by applying a strainer of mynovel construction to the cooling system of an automobile, the water isthoroughly strained on each circulation of the system and all core sandand iron scale and other solids carried by the water in suspension insaid-system are removed; thus preventing the clogging or obstruction ofthe minute radiator water passages through which the water circulatesand thus msures a -more constant and efficient cooling. By the becomeclogged are thus entirely eliminated,

the sediment being thus removed by the batfles and screen andaccumulated in the dirt pocket 22, whence it can be removed periodicallywithout expense or the employment of highly skilled labor. r

The operation is as follows The water from the cylinder jacket of anautomobile flows through the inlet4 in the direction of the arrow 19where it impinges upon the baffle 14 which contacts along its upperperiphery with the casing 3 and which is forwardly inclined as will beseen. from Figure 2. The water carrying in suspension particles of rust,scale or carbon from the engine block is thus forced to traveldownwardly along the inclined surface of the bafile 14' and upwardly inthe direction of the arrow 20. As the water travels downwardly thebaffle 14 not only retards the flow of the water and thus causesprecipitation of the coarser sediment held in suspension therein due toloss of velocity but it also directs such sediment downwardly towardsthe pocket 20, in a positive-manner which is not obtainable by the useof a mere conventional vertical baffle which is open along its entirecircumferential perphery and which does nothing more than retard theflow of water to decrease its sediment carrying capacity, and to reduceits impact against the straining element. This result is obtained by theemployment of an inclined baffle 14 closed at its up er eriphery thusforcing the water to ow be neath said baffle towards; the dirt pockets22 to deposit the sediment therein. The sediment thus deposited in thepocket 22 tends to remain in said pocket due to the reduced carryingpower of the water flowing beyond the baffle 14 in the direction of thearrow 20. To insure the further precipitation of the finer sedimentstill suspended in the water after passing beyond the baffle 14 andbefore it reaches the screen 10, I provide the second inclined baflle 13which closes the bottom of the casing 3 (see Fig. 2) so that the wateris ment in the water impinging against the baflle 13 to travel upwardlyagainst an oppositely inclined surface thus tending to direct sucsediment downwardly toward the pocket 22 in a positive manner.

It will be seen that due to the fact that the velocity of the water hasbeen twice retarded by the baflis 14 and 13 both of which converge andtend to direct the sediment towards the pocket 22 as above explained, mynovel bafiling and straining device is extremely efficient and producesdesirable results not heretofore obtained.

It is to be noted that the function of my bafiies 14 and 13 is not onlythe conventional function ordinarily accomplished by bafiles used inconnection with circulating systems or water pipes, namely, to causeprecipitation of sediment by retarding the flow of the water, or todistribute the flow of water uniformly over the entire surface of thefiltering element such as the screen 10, orto absorb the impact of thewater impinging against thestraining or filtering element, but inaddition, my novel baflles serve to direct the sediment downwardlytowards the pocket 22 (by means of the baflles 14 and 13) and to preventthe escape of said sediment from said pocket in a positive manner (bymeans of the plate 13) as above explained.

While I have described my novel strainer as applicable to the coolingsystem of an automobile, it is to be understood that the same L I claimas new and is equally applicable to any other cooling or heating orother system, or wherever a body of liquid is confined and forced tocirculate in any circulating system of this general character. v

The manner of installing my device will be readily understood fromFigure 1, the inlet 4 and exit 5 engaging the hose nipples 25 and 26,which may be provided with the hose clamps 27 of the usual construction.

It will also be apparent that my novel strainer is inexpensive toproduce and is of very simple construction, and requires no attention orrepair. It will further be seen that my novel strainer can be easily andquickly applied to any. conventional automobile or other mechanismwithout involving anyextensive alteration or modification of thestrainer or the mechanism to which itis applied.

I am aware that bodied in other specific forms without departing fromthe spirit or essential attributes thereof, and I therefore desire thepresent embodiment to be considered in all respects as illustrative andnot restrictive, reference being had to the appended claims rather thanto the foregoing description to indicate the scope of the invention. v

Having thus described my invention what desire to secure by LettersPatent is v 1. In a combinedbafiling and straining device, an inletsection, an outlet section, a plurality of vertically and rearwardlyinclined baflle plates positioned in said inlet section, a

dirt'pocket in the lower portion of said inlet section belowsa-idbaflles, and a screen secured between said sections, said baflle platesconget-her, a baflie unit consisting the invention may be em-' natelywith the upper and lower walls of said inlet to force the water flowingtherethrough in successive downward and upward direc-- tions, a supportfor said bafiles, which is also integral therewith, and a screenpositioned between said sections.

3. In a device of the character stated, a casing comprising inlet andoutlet sections, a screen intermediate said casing sections, abafile'unit in said inlet section, comprising a pair ,'of inclined,vertical plates contacting with the upper and lower walls of said inletsection respectively to form lower and upper ports for the water flowingthrough said inlet section and a pocket formed in the bottom of saidinlet section for receiving the sediment precipitated by said battleplates.

. 4. In a device of the character stated, a

separable casing comprising inlet and outlet clamped between saidsections, said ring having extended. therefrom toward the inlet section,spaced, inclined, front and rear baflie plates, and a screen alsoclamped between said sections and abutting against that portion of saidring facing the outlet section.

5. In a device of the character stated, a separable casing comprisinginlet and outlet sections, means for clamping said sections to of a ringclamped between said sect-ions, said ring having extended therefromtoward the inlet section, spaced, inclined primary and secondarybaflles, a web fixed to said ring and supporting said spaced bafiles, aweb for spacing said bafiies, and a screen also clamped between saidsections and abutting against that portion of said ring facing theoutlet section.

6; In a device of the characterstated,aseparable casing comprising inletand outlet sections, means for clamping said sections together, a bafileunit consisting of a ring clamped between saidsections, said ring havingextended therefrom towardpthe inlet section, bafiles, a. screen alsoclamped between said sections and abutting. against that portion of saidring facing the outlet section, a sedi ment chamber arranged in saidinlet section to receive deflected-sediment from said primary baiile,chamber. x

7. Thecombination of an automobile radiator, having arwat'er circulatingsystem, with spaced, inclined primary andsecon'dary and a removableclosure for said radiator comprising a screen, a rearwardly inclinedbafile plate positioned in advance of said screen, adapted to retard andforce the water of said circulating system in a downward direction toprecipitate the sediment carried thereby, a pocket below said bafileplate adapted to receive the precipitated sediment, a rearwardlyinclined baflle plate intermediate said pocket and said screen adaptedto retard and force the water of said circulat- 5 ing system upwardly toprecipitate the sediment remaining therein into said pocket and toprevent the sediment thus deposited in said pocket from escapingtherefrom and reaching said screen.

8. A combined baffling and straining device for water circulatingsystems comprising a casing having a water inlet section and a Wateroutlet section, a screen positioned intermediate said sections, a pocketin said inlet section below and in advance of said screen, bafile platesintermediate said pocket and said screen adapted to retard the flow ofwater through said inlet to cause precipitation of the sediment carriedthereby into said pocket, said baflie plates being inclined in adirection opposite to the direction of the flow of water within saidinlet frictionally to engage the sediment carried by the water flowingagainst said plate to force such sediment downwardly into said pocket ina positive manner and to. prevent such sediment from escaping from saidpocket and reaching said screen.

9. In a device of the character stated, the combinatiomof an automobileradiator and (the water circulating system thereof with a combinedbafiiing and straining device interposed between the upper exit of saidwater circulating system and the top inlet of said radiator, comprisinga casing having horizontally aligning inlet and outlet openings, avertical rectilinear screen positioned in said casing intermediate saidopenings and a rearwardly and upwardly inclined baflle plate positionedin said inlet opening in advance of said screen. 10. In a device of thecharacter stated, the combination of an automobile radiator and thewater circulating system thereof with a combined .bafiling and strainingdevice interposed between the upper exit of said water circulatingsystem and the top inlet of said radiator and comprising a casing havinghorizontally aligning inlet and outlet openings, a vertical, rectilinearscreen positioned in said casing intermediate said openings and a plurality'of rearwardly inclined bafile plates positioned in said inlet inadvance of said screen.

HENRY A. WIEAND.

